iOS app developer David Barker posted the GIF below in a tweet earlier this week. It shows every single iPhone that has ever been released, from the first-generation model all the way through the brand new iPhone 6s and iPhone 6s Plus, being unlocked with a single swipe.

It is cool? Yes. Is it pointless? Definitely. But watching those 12 iPhones being unlocked with one swipe is somehow both mesmerizing and incredibly nostalgic. Enjoy.